A 14-gauge copper wire of diameter 1.628 mm carries a

A 14-gauge copper wire of diameter 1.628 mm carries a current of 12.5 mA.

(a) What is the potential difference across a 2.00-m length of the wire?

(b) What would the potential difference in part (a) be if the wire were silver instead of copper, but all else were the same?

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